SeedGen

Generate seed files based on your Rails models and schema.

Add this line to your application's Gemfile:

gem "seedgen", "~> 0.0.4"

SeedGen hooks into your models to build you a seed file. After installation, run:

SEED=1 rails db:schema:load

The above command generates db/seedgen.rb with a scaffold of all of your models and a line for each that will create the record in your db. SeedGen attempts to create a model tree and will write to the file in the order of Root -> Child. This is so that when you run your seed file, you won't run into any issues with relationships. For example, you may have a Post model that belongs_to: user. If the seed file attempts to create a Post before its associated User is created, it'll obviously raise an error and crash.

Note: You may notice SeedGen missing some of your models. If this is the case, it is because your application needs to eager load its classes for SeedGen to see them. In config/application.rb, add the below block in your test env:

config.after_initialize do
  Rails.application.eager_load!
end

and rerun SEED=1 rails db:schema:load.

At the moment, seedgen doesn't provide you with a rake task to run this seed file. So, for now, you'll have to either 1) copy the contents of seedgen.rb into your seed.rb file, or create your own rake task in lib/tasks. Note: this is a high priority issue.

Let's imagine you have a database with two tables: posts & users. SeedGen will create the following order-specific seed file.

# TODO: Add any code that needs to run before data is created.

User.create!(first_name: 'temgcpr', last_name: 'cuqoghi', email: 'zrcpqhn', password: 'ophpnxy')

Post.create!(title: 'vurkcff', body: 'morph back-end initiatives', status: 2, user_id: 1)

# TODO: Add any code that needs to run after data is created.